Content-unaware Methods. Moreover, we also do our best to implement recent content-unaware methods [1]}, [2]} and sample their results for comparison. As shown in Tab. REF  and Fig. REF , it is not surprising to see our model has superiority in user study and composition-relevant metrics. But ours works worse on graphic metrics, especially the alignment. We infer the reason is that the task of these content-unaware methods is simpler, and they are not influenced by changing images.
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